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Rachel Thomasson

5 accepted papers

2025

SLIM: A Symmetric, Low-Inertia Manipulator for Constrained, Contact-Rich Spaces

RA-L 2025

Operation in constrained and cluttered spaces poses a challenge for robotic manipulators, in part due to their bulky link geometry and kinematic limitations in comparison to human hands and arms. To address these limitations, we introduce SLIM, a custom end-effector consisting of a bidirectional han

Cited by 0SourceScholar
2022

Going In Blind: Object Motion Classification using Distributed Tactile Sensing for Safe Reaching in Clutter

IROS 2022poster

Robotic manipulators navigating cluttered shelves or cabinets may find it challenging to avoid contact with obstacles. Indeed, rearranging obstacles may be necessary to access a target. Rather than planning explicit motions that place obstacles into a desired pose, we suggest allowing incidental con…

Cited by 6SourceScholar
2021

Exploratory Hand: Leveraging Safe Contact to Facilitate Manipulation in Cluttered Spaces

RA-L 2021

We present a new gripper and exploration approach that uses a finger with very low reflected inertia for probing and then grasping objects. The finger employs a transparent transmission, resulting in a light touch when contact occurs. The finger elements are stiff and mounted on precise Cartesian ax

Cited by 13SourceScholar
2020

Distal Hyperextension Is Handy: High Range of Motion in Cluttered Environments

RA-L 2020

As robots branch out from the manufacturing sector into the home, there is a pressing need for new technology that can operate in cluttered and unstructured human environments. Loading and unloading a dishwasher serves as a difficult representative challenge for in-home robots, and a new robotic end

Cited by 10SourceScholar
2019

Quasi-Direct Drive for Low-Cost Compliant Robotic Manipulation

ICRA 2019poster

Robots must cost less and be force-controlled to enable widespread, safe deployment in unconstrained human environments. We propose Quasi-Direct Drive actuation as a capable paradigm for robotic force-controlled manipulation in human environments at low-cost. Our prototype - Blue - is a human scale…

Cited by 115SourcecodeScholar